Anodic Desulfurization of Heterocyclic Thiones - A Synthesis to Imidazoles and Analogues.

An electrochemical desulfurization of 2-mercapto-imidazoles to the corresponding imidazole is established. This novel anodic transformation is bromide-mediated and easy to conduct in the simplest electrochemical setup, consisting of an undivided cell, carbon electrodes, and constant current electrolysis. The method proved successful in 14 diverse examples of imidazoles and triazoles with up to a 97% yield.

Assessment of the upper gastrointestinal tract in hemodialysis patients awaiting renal transplantation.

Seventy-five dialysis patients awaiting renal transplantation were studied. Investigations included single contrast barium meal, serum gastrin assay, gastric acid studies, and fiberoptic gastroduodenoscopy with multiple biopsies. Radiological studies revealed five duodenal ulcers and one gastric ulcer.

Subcutaneous lateral internal sphincterotomy in the treatment of chronic anal fissure.

One hundred and seventeen patients with chronic anal fissure were submitted to subcutaneous internal lateral sphincterotomy. Immediate pain relief was observed in all patients except two, in whom sphincterotomy was incomplete. One hundred and ten patients had their first painless bowel movement 24 to 48 hours after the operation.